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发明授权
CN1730816B 包含烷醇铵的三嗪基盐酸黄酮哌酯增白剂 有权 转让

包含烷醇铵的三嗪基盐酸黄酮哌酯增白剂
摘要：
提供在施胶挤压机中使纸张增白的方法，其特征在于，所述施胶挤压液包含通式I所示的增白剂，式中，X相互独立，表示通式(A)或(B)所示的基团，其中，R1表示C1-C6-烷基，R2表示H，或R1表示H，和R2表示C1-C6-烷基，它们相互独立，R3表示H、甲基、乙基、CH2CH2OH或CH2CH2OCH3，R1’表示C1-C6-烷基，和R2’表示H，或R1’表示H，和R2’表示C1-C6-烷基，它们相互独立，R3’表示H、甲基、乙基、CH2CH2OH或CH2CH2OCH3，R4表示C1-C4-烷基，和M表示H，无机阳离子的一个等价物，尤其是Li、Na、K、Ca、Mg或铵，或者通式II所示取代的铵，式中，R5-R7相互独立，表示氢、C1-C4-烷基，或任选进一步取代的C2-C4-羟基烷基，R8表示任选进一步取代的C2-C4羟基烷基，至少10摩尔％的所有阳离子M对应于通式II。
摘要（英）：

The invention provides a method for whitening papers in a size press characterized in that a size press liquid contains a whitening agent of the general formula (I), wherein X independently of one another represents a radical of the formula (A) or (B), R1 represents C1-C6-alkyl, R2 represents H, or R1 represents C1-C6-alkyl, they are independently of one another, R3 represents H, methyl, ethyl, CH2CH2OH or CH2CH2OCH3, R1' represents C1-C6-alkyl, and R2' represents H, or R1' represents H, and R2' represents C1-C6-alkyl, they are independently of one another, R3' represents H, methyl, ethyl, CH2CH2OH or CH2CH2OCH3, R4 represents C1-C4-alkyl, and M represents one equivalent of H, and inorganic cations, preferably Li, Na, K, Ca, Mg or ammonium, or a substituted ammonium of general formula (II), wherein R5-R7 independently of one another represent H, C1-C4-alkyl or optionally further substituted C2-C4-hydroxyalkyl; and R8 represents optionally further substituted C2-C4-hydroxy alkyl, at least 10 mol% of all cation corresponds to the general formula (II).

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